1. Elementary Mechanics of Fluids
CE 319 F
Daene McKinney
Elementary Mechanics of Fluids
Continuity Equation

2. Continuity Equation Reynolds Transport Theorem Unsteady Case

3. HW (4.72)

4. HW (4.88)

5. 1-D Flow in a Conduit
Continuity Eq.
Steady flow
Incompressible fluid

6. EX (4.76) Find: At 22 s, will water surface be rising or falling?
Solution: Define CV, CS moves with water surface. Continuity Eq. CS
Water is rising

7. EX (4.76) In the 12-in. section In the 24-in section after 22 sCS
In the 24-in section after 22 s
Time to move up 10 ft in 12-in section